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Conductive electrode powder, a method for preparing the same, a method for preparing an electrode of a plasma display panel by using the same, and a plasma display panel comprising the same

a technology of conductive electrodes and powders, which is applied in the manufacture of electrode systems, electric discharge tubes/lamps, instruments, etc., can solve the problems of silver electrode being cut off, the exposed electrode of the plasma display panel is easily corroded by oxidation or sulfuration, and the considerable time gap of the plasma display panel. to achieve the effect of improving the plasma display panel

Inactive Publication Date: 2007-04-26
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0011] Embodiments of the present invention provide an improved conductive electrode powder, a method for preparing the conductive electrode powder, a method for preparing an electrode of a plasma display panel, and an improved plasma display panel.

Problems solved by technology

However, a plasma display panel has a considerable time gap until it is assembled with a module after the plasma display panel itself is assembled, during which an exposed electrode thereof is easily corroded by oxidation or sulfuration due to moisture, impurities, and external gases such as oxygen or sulfur dioxide generated by applying an electric field or being left alone in the air.
The aforementioned corrosion problem of a terminal element resultantly accelerates the ionization of the exposed electrode (particularly one made with silver (Ag)), which subsequently leads ions to migrate between the electrodes and causes a short-circuit.
On the other hand, a sulfur component generates silver sulfide at the silver electrode, resultantly causing the silver electrode to be cut off.
This terminal element inferiority leads to inferior panels.
However, they are mostly limited to indirect ways of isolating impurities, water, moisture, and external gases, but this does not deal with fundamental ways of imparting anti-corrosion to an electrode itself.

Method used

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  • Conductive electrode powder, a method for preparing the same, a method for preparing an electrode of a plasma display panel by using the same, and a plasma display panel comprising the same
  • Conductive electrode powder, a method for preparing the same, a method for preparing an electrode of a plasma display panel by using the same, and a plasma display panel comprising the same
  • Conductive electrode powder, a method for preparing the same, a method for preparing an electrode of a plasma display panel by using the same, and a plasma display panel comprising the same

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0096] 100 parts by weight of a silica solution (water glass) including 15 wt % of silica particles with an average particle diameter of 50 nm (made by FERRO Co.) were mixed with 300 parts by weight of an amorphous silver (Ag) powder (DOWA MINIG Co., Ltd., particle-spherical shape). Then, the mixture was agitated, sprayed, and fired at 580° C. for 60 minutes to prepare a conductive electrode powder.

[0097]FIG. 6 is a scanning electron microscope (SEM) photograph of the conductive electrode powder with a silica coating layer.

[0098] An address electrode and a plasma display panel were fabricated by the same method as that of Comparative Example 1, except that 29.8 wt % of a photosensitive vehicle and 65 wt % of a conductive powder prepared according to Comparative Example 1, 3 wt % of PbO, 2 wt % of B2O3, and 0.2 wt % of silica were mixed to prepare a paste.

example 2

[0099] An address electrode and a plasma display panel were fabricated by the same method as that of Comparative Example 1, except that a photosensitive vehicle was prepared by mixing 5 wt % of a silica solution including 15 wt % of silica particles with an average particle diameter of 50 nm (water glass) (made by Ferro Co.) and 95 wt % of a photosensitive vehicle prepared according to Comparative Example 1.

[0100]FIG. 7 is a scanning electron microscope (SEM) photograph of the surface of an address electrode according to Example 2 after firing it.

example 3

[0101] An address electrode and a plasma display panel were fabricated by the same method as that of Example 2, except that 5 wt % of a silica solution including 15 wt % of silica particles with an average particle diameter of 200 nm (water glass) (made by Ferro Co.) was used.

[0102]FIG. 8 is a scanning electron microscope (SEM) photograph of the surface of an address electrode according to Example 3, after firing it.

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Abstract

The present invention provides a conductive electrode powder which includes electroconductive metal particles, and an inorganic oxide coating layer covering the surface of the electroconductive metal particles. By using a conductive electrode powder, the corrosion, the ionization, the migration such as ionization, and yellowing of the electrode such as colloidalization can be prevented, while simultaneously maintaining electrical conductivity of an electrode.

Description

CROSS-REFERENCE TO RELATED APPLICATION AND CLAIM OF PRIORITY [0001] This application claims priority to and the benefit of Korean Patent Application No. 10-2005-0092243 filed in the Korean Intellectual Property Office on Sep. 30, 2005, the entire content of which is incorporated herein by reference. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a conductive electrode powder, a method of preparing the same, a method for forming an electrode of a plasma display panel, and a plasma display panel including the same. More particularly, the present invention relates to a conductive electrode powder that can inhibit oxidation of exposed ends of address electrodes and bus electrodes, a method of preparing the same, a method for forming an electrode of a plasma display panel, and a plasma display panel including the same. [0004] 2. Description of the Related Art [0005] A plasma display panel (PDP) is a flat display device using a plasma ...

Claims

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Application Information

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IPC IPC(8): H01L21/00G03G21/00H01L23/58B22F1/00B22F1/02B22F5/00C23C24/10H01J9/02H01J11/12H01J11/24H01J11/26H01J11/36H01J11/38H01J11/40H01J11/42H01J11/46H01J11/48
CPCH01J9/02H01J11/12H01J11/22H01J2211/225
Inventor KIM, CHUL-HONG
Owner SAMSUNG SDI CO LTD
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